Boat Building Forum

Find advice on all aspects of building your own kayak, canoe or any lightweight boats

Re: finish cancer?
By:John Monfoe
Date: 7/21/2001, 5:47 am
In Response To: finish cancer? (rick M)

: I noticed on my stip canoe a little while back that pimples were forming in
: the finish. These raised lesions were brownish and felt rough. The boat
: was varnished with flagship on top of MAS epoxy. I varnished it outside
: and temp control was difficult but the varnish appeared and felt hard a
: couple of days later when it hit the water. These lesion seam to be
: spreading all over the boat and is quite ugly:( Obviously I will have to
: sand her down, possibly to glass but does anyone have any ideas what
: happened. I varnished my yak a weak latter inside the shop but otherwise
: application was the same. I haven't had any problems with it.
: Thanks
: Rick

Hi Rick,

I had the same problem. I believe mine was caused because my deck had a lot of stress in the harsh bending of my strips. When both halves had been glassed and put together I took it out into the sun to work on the boat. I went into the house for a few hours and when I returned I had pimples all over the deck. I think the hot sun and the stresses between the wood and glass caused my problems. I ground down to bear wood and reglassed and every thing has been fine since.

Jonn

Messages In This Thread

finish cancer?
rick M -- 7/21/2001, 12:17 am
Re: finish cancer?
Jay Babina -- 7/23/2001, 9:02 am
Re: finish cancer?
John Monfoe -- 7/21/2001, 5:47 am
Re: finish cancer?
rick M -- 7/21/2001, 7:41 pm
Re: finish cancer?
John Monfoe -- 7/21/2001, 5:40 am